http://researchonline.federation.edu.au/vital/access/manager/Index ${session.getAttribute("locale")} 5 Finite alternation theorems and a constructive approach to piecewise polynomial approximation in chebyshev norm http://researchonline.federation.edu.au/vital/access/manager/Repository/vital:14377 Wed 07 Apr 2021 14:02:28 AEST ]]> Characterization theorem for best polynomial spline approximation with free knots, variable degree and fixed tails http://researchonline.federation.edu.au/vital/access/manager/Repository/vital:11946 Wed 07 Apr 2021 13:57:14 AEST ]]>